What are the details?
Bolton's book, titled, "The Room Where It Happened: A White House Memoir," is still undergoing analysis by the Trump administration, after the former national security adviser submitted the manuscript for a standard prepublication review.
Last month, the National Security Council notified an attorney for Bolton that an initial review found the manuscript "appears to contain significant amounts of classified information" that must be removed prior to publishing or any other kind of disclosure.
"I hope it's not suppressed," Bolton said of his book to the crowd in Durham, North Carolina, on Monday, according to Bloomberg News. "This is an effort to write history, and I did it the best I can. We'll have to see what comes out of the censorship."
Details from the unpublished draft of Bolton's book were already reported by the New York Times, where the outlet claimed President Trump told Bolton "in August that [the president] wanted to continue freezing $392 million in security assistance to Ukraine until officials there helped with investigations into Democrats including [Democratic presidential candidate Joe Biden and his son, Hunter Biden]."
The New York Times report led Democrats to call for Bolton's testimony during the impeachment trial of President Trump in the Senate, as the president's conversations with Ukrainian President Volodymyr Zelensky prompted House Democrats to launch the probe against President Trump in the first place.
When asked on Monday whether Bolton considered President Trump's call with Zelensky to be "perfect," Bolton simply replied, "You'll love chapter 14."